NAME
chgrp - change group

SYNOPSIS
chgrp [ -Rf ] group file ...

DESCRIPTION
Chgrp changes the group-ID of the files to group. The group may be
either a decimal GID or a group name found in the group-ID file.

The user invoking chgrp must belong to the specified group and be
the owner of the file, or be the super-user.

No errors, except for usage errors, are reported when the -f
(force) option is given.

When the -R option is given, chgrp recursively descends its
directory arguments setting the specified group-ID. When symbolic
links are encountered, their group is changed, but they are not
traversed.

SEE ALSO
chown(1), chown(2), passwd(5), group(5)